Redskin is a slang term for Native Americans in the United States and First Nations in Canada. The term "redskin" underwent pejoration through the 19th to early 20th centuries and in contemporary dictionaries of American English it is labeled "usually offensive", "disparaging", "insulting", or "taboo".
What Native America tribe is named Redskin (Cherokee, Apache, Navajo, etc) ? There are not any. Redskin is only and has always only been a racial slur. Do you think a team could be named, the yellowskins, the blackskins, the brownskins, the whiteskins? It would not fly and this is not acceptable either.